Home / 20,996,858.32-28,975,664.84-11,339,066.32

Finding the Fourth Proportional to 20,996,858.32, 28,975,664.84 and 11,339,066.32

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Solution

The fourth proportional to 20,996,858.32, 28,975,664.84 and 11,339,066.32 is: 15,647,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,858.32 : 28,975,664.84 = 11,339,066.32 : x
  2. Step 2: Convert to fraction form
    20,996,858.32/28,975,664.84 = 11,339,066.32/x
  3. Step 3: Cross multiply
    20,996,858.32x = 28,975,664.84 × 11,339,066.32
  4. Step 4: Simplify right side
    20,996,858.32x = 328,556,985,286,852.19
  5. Step 5: Solve for x
    x = 328,556,985,286,852.19/20,996,858.32
  6. Step 6: Final answer
    x = 15,647,911.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.